Shanghai YinFanInternational Co.,Ltd which is located in Shanghai China. Here called "YFI". Engaged in international business and engineering services. YFI persistent pursuit of quality and credibility YFI deeply into market to meet clients' requirement and provides quality customer service. YFI has abundant capital and qualified team of experienced professionals to service the clients all over of the world. Especially, in oil and gas field and engineering construction adjusting the surplus&deficiency balance demand acting as a bridge between end user and manufacturers we can be your consultant partner and your honest friends. Let's hand in hand and make a brilliant future together.